electrical characterization
Recently Published Documents


TOTAL DOCUMENTS

4522
(FIVE YEARS 559)

H-INDEX

76
(FIVE YEARS 11)

2022 ◽  
Vol 13 (1) ◽  
pp. 5
Author(s):  
Antonino Cataldo ◽  
Matteo La Pietra ◽  
Leonardo Zappelli ◽  
Davide Mencarelli ◽  
Luca Pierantoni ◽  
...  

As part of a biopolymer matrix, pectin was investigated to obtain an engineered jam, due to its biodegradability. Only a few examples of pectin-based nanocomposites are present in the literature, and even fewer such bionanocomposites utilize nanocarbon as a filler—mostly for use in food packaging. In the present paper, ecofriendly nanocomposites made from household reagents and displaying multiple properties are presented. In particular, the electrical behavior and viscoelastic properties of a commercial jam were modulated by loading the jam with carbon nanotubes and graphene nanoplates. A new nanocomposite class based on commercial jam was studied, estimating the percolation threshold for each filler. The electrical characterization and the rheological measurements suggest that the behavior above the percolation threshold is influenced by the different morphology—i.e., one-dimensional or two-dimensional—of the fillers. These outcomes encourage further studies on the use of household materials in producing advanced and innovative materials, in order to reduce the environmental impact of new technologies, without giving up advanced devices endowed with different physical properties.


Nanomaterials ◽  
2022 ◽  
Vol 12 (2) ◽  
pp. 206
Author(s):  
Honghwi Park ◽  
Junyeong Lee ◽  
Chang-Ju Lee ◽  
Jaewoon Kang ◽  
Jiyeong Yun ◽  
...  

The electrical properties of polycrystalline graphene grown by chemical vapor deposition (CVD) are determined by grain-related parameters—average grain size, single-crystalline grain sheet resistance, and grain boundary (GB) resistivity. However, extracting these parameters still remains challenging because of the difficulty in observing graphene GBs and decoupling the grain sheet resistance and GB resistivity. In this work, we developed an electrical characterization method that can extract the average grain size, single-crystalline grain sheet resistance, and GB resistivity simultaneously. We observed that the material property, graphene sheet resistance, could depend on the device dimension and developed an analytical resistance model based on the cumulative distribution function of the gamma distribution, explaining the effect of the GB density and distribution in the graphene channel. We applied this model to CVD-grown monolayer graphene by characterizing transmission-line model patterns and simultaneously extracted the average grain size (~5.95 μm), single-crystalline grain sheet resistance (~321 Ω/sq), and GB resistivity (~18.16 kΩ-μm) of the CVD-graphene layer. The extracted values agreed well with those obtained from scanning electron microscopy images of ultraviolet/ozone-treated GBs and the electrical characterization of graphene devices with sub-micrometer channel lengths.


2022 ◽  
Vol 137 ◽  
pp. 106199
Author(s):  
Makarand M. Kane ◽  
Kamlesh Joshi ◽  
H.J. Bahirat ◽  
Madhav Phadke ◽  
S.V. Kulkarni ◽  
...  

2022 ◽  
pp. 71-99
Author(s):  
Jonathan Cottet ◽  
Federica Caselli

Author(s):  
A Kanni Raj

Abstract: Polyaniline nanoparticles is synthesized by chemical oxidation of aniline by copper sulphate. Chemical reduction of silver nitrate by sodium citrate yileds silver nanoparticles. Both aforesaid nanomaterials are mixded with polyvinyl alcohol to get nanocomposite gel. Nanoparticles are characterized by ultraviolet-visible absorption spectroscopy. Schottky diode is made by applying nanocomposite with copper wire on one side of aluminium foil and on other side attaching copper wire for another electrical contact. Current-voltage electrical characterization is analyzed by making simple circuit encompassing polyaniline/silver nanocomposite diode. Keywords: Nanoelecttronics, Nanoparticles, Polyaniline, Nanocomposite, Schottky-diode


Sign in / Sign up

Export Citation Format

Share Document